Weekly Blog 9/15

http://www.publicdomainpictures.net/view-image.php?image=201810&picture=mixture-of-fossils

Summary:

          For things that used to be alive like plants and animals you can find the age of the fossils or bones by using carbon dating. A half life of something is when half of the carbon decays from a fossil so the amount of current carbon divided by 2 would be a half life. One example of this is if you had 25% carbon a half life would make it to be 12.5% carbon. Pangaea is the theory that before the continents were made they were all one big piece of land and over time they split up into the current continents. Their is proof for this like how the mesosaurus  lived on two different continents across the ocean but it was a fresh weather creature so it did not make sense but they pieced together the continents  and it stared to make sense there are all so other pieces of proof but that was just one example.

S&EP: SP5: Using mathematics and computational thinking:

          For science this week we had to incorporate math to help us calculate how many carbon(or other) molecules there were in fossils. We had to divide the current amount by two to show a half life and it got harder when we got down to 25% because then we had decimals. A example from what we were given is 12.5 divided by 2 which would be 6.25 which was slightly hard. The math was not that hard but it still took a second  to think of it and to figure it out but it was still math to do. It was important to get the math right because it takes multiple steps so if you do one wrong you can get the other's wrong too.